Dumping-grate for furnaces.



, UMTED @Meeres-ENT @moa EDWARD GIBSON, vor JERSEY einer,l New JEnsnY. jfl.;

DUMPING-GRATE FOR FURNACES.

T0 all lwhom it may Gomera.' ,Be it known that I,"EDwARD GIBSON, a citizen of the United States, residing in Jersey City, county of Hudson, in the State of lNew Jersey, iron-founder, have invented a certain new and useful Improvement in Dumpingllrates for Furnaces; hereby declare that the following ris and exact description thereof.

I- maintain the much approved style'ot a full dumping grates made in sections with the proper liberal air spaces, removably mounted on a rocking shaft. the dumping being etl'ected when required by tilting the whole on trunnions formed on the rocker and supported on suitable stationary bearings. The sections are rectangular, mounted side by side and capable of being separately removed by simply lifting when liberated.

The. sections are relatively long and narrow and have arlongitudinal flange on each ledge deeply notched to receive the rocker.

Each has another strengthening part which l will term the central rib extending along the middle. This latter' is not notched or otherwise contracted but contributes its full depth to strengthen the section.

The rocker is formed with a. deep notch on its upper edge and great deepening of the body to accommodate such rib without Vweakening as it extends past the rocker. l have discovered that the work may be greatly further strengthened, and the change made also a means for locking the sections to the rocker as has been long practised with other styles of grate 'so thatl the sections will never be shaken out of engagement by the most energetic dumping motions. The construction also allows an increase in the depth of the jaws by which the sections engage the rocker.

The following' is a" description of what 1 consider the best means of carrying out the invention.

It will be understood that the sections may be in a. greater or less number.

The acompanying drawings ferm part of this specification.

Figure l, is a longitudinal section of my furnace with four sets of sections, and four rockers. Fig. 2 shows a rocker with one section in position for Work. Fig. 3 is a plan view of a portieri of a furnace with a part broken away, showing lhorizontal section there. Figli is a section on the line 4-4 in Fig. 3. Fig. 5 is a perspective view showing and I dodeep notch Specification of Letters Patent'.i Patentd'Niov, 10; 1914, Applicatie ined January a1. 1914. 'sei-laine. 813,391. i

onesection detached and inverted.F-ig. (ids a perspective view showing; the `rocluer adel tached. i l @1 Similarlletters of .reference .indicate cor.-

.respondng parts wherever they.y appear. i

cferrling to. thedrawing and the marks i i of i reference `thereo n,-HA. .indicates the ordi nary frame of cast iron wlth the usualbeurmes for the trunnions. The other parts .B .is a 'roc/ker, B1 the trunnlons and 7) la for the central ribs of the corresponding sections, and b1` are holes to be described below. each ready to receive a' locking pin. v.

D is a. section, D1 D2 the edge flanges, each of the latter having its proper' deep notch to receive and match closely to the rocker when the parts are applied together, compelling the section to conform to the tilting motions of the rocker.

D3 and D3 are transverse braces extending across the entire section, cast integral with the central rib and with the side flanges and strengthening the whole. Holes l are cored or otherwise formed in these braces which match in size and position to the holes 711 in the rocker B which is closely adjacent. E El are pins of steel or other strong and refractory material extending through the slightly larger holes and holding the rocker and the sections reliably together. The holes are conntersunk at each end to facilitate the introduction of a pin when the parts are more or less out'of position. One end of each pin is formed with a bend E1 which may serve with any ordinary appliancc. either alone or in combination with a gentle pressure or slight. blow on the other end. to remove any pin when it is required to unlock.

As with most styles of grates the sections are short-lived. They fail at. unequal periods. My construction prolongs the life of these iml'iortant and severely burned irons by making flanges and rib mutually support each other by the cross braces D l, and the pins E El i provide against the section bein" thrown olf.

odificatons may be made without. departing from the principle or sacrificing the advantages of the invention. The proportions may be changed within wide limits. Parts may be used without the whole. One or both the locking pins E E1 may be omitted. Both may be sometimesomitted in 5 always four of the holes in the braces D3,

and two of Ithe'holes inv the rocker B.,as` shown. The pins are interchangeable. v

I claim as my invention:

l. The grate described comprising rockers,

1o having notches, and removable fuel supporting sections, each having 'a centrally disposed, continuous, longitudinal rib, adapted to match in one ofsaid notches and to reinforce said section, flanges notched Jwho receive 15 said rochers, and reinforcing' centrally disposed, transverse braces, cast with 'said sections. f

2.. The grate described comprising rockers, y

havingnotches, and. removable fuel supportmg sections, each 'having a centrally disposed, continuous, longitudinal rib, adapted .to match in one of said notches and to reinforce said section, flanges notched to receive said rockers, reinforcing centrally disposed,

'transverse braces, 'cast with said sections,

and removable means extended through said braces and rockers Vand lookin said` parts: 1 n Signed at New York cit 't is 16 day of January 1914i. I

Witnesses:

l?. A. CHICKERING, y THOMAS'DREW Smrsorr.

, EDWARD caisson.' l 

